Nidec Auto Ref/Keratometer ARK-1

CAUTION: Never use an organic solvent such as paint thinner or alcohol.

Lightly wipe the exterior of the LCD. Do not press the LCD using an object with a hard tip and keep magnetic objects away from the LCD.

Never use a sponge or cloth soaked in water. The water may leak into the inside of the device and cause device failure.

Is the cover or panel of the device clean?

Is the LCD clean and undamaged?

Sign off on the cleaning procedure

Warning: Only clean the measuring window when the 'CHECK MEASURING WINDOW.' message is displayed or the lens is visibly soiled.

Check for dirt on the measuring window before use

NOTE: Use a thin stick that will not scratch glass lenses.

Upload a photo of the measuring window before cleaning

Blow off any dust on the measuring window with a blower

Wrap lens cleaning paper around a thin stick and wipe the lens of the measuring window with a material moistened with alcohol

Wipe off the glass of the mire ring around the measuring window using gauze or such dampened with alcohol

Upload a photo of the measuring window after cleaning

Check if the window is cleaned using a penlight

Remove the two fixing pins from the chinrest

Number of chinrest papers removed from the pack

An entire pack of chinrest paper cannot be attached. Attach a stack with a thickness of 6 mm of less.

Pass the fixing pins through the chinrest paper stack

Attach the stack of chinrest paper onto the chinrest

Sign off on the chinrest paper attachment

Warning: This procedure requires trained personnel!

Printer cover opened and paper roll removed?

Paper residue removed with a vacuum cleaner?

Warning: Never blow off paper residue with a blower. If paper residue settles on the internal working structure, malfunction may result.

Printer paper supplied as it was?

Sign off on the printer cleaning

Warning: This procedure requires trained personnel!

Removed the two fixing pins and the stack of chinest paper from the chinrest?

Removed the cap from the spherical model eye and put the model eye on the chinrest with its lens toward the measuring window and then inserted the fixing pins?

Checked the lens surface of the model eye for soiling?

Aligned the level of the spherical model eye with the eye level marker by operating the chinrest up/down button?

Set the '1. STEP' parameter to '0.01D'?

Performed AR and KM measurements in the same manner as normal AR and KM measurements?

CAUTION! If the measured result is higher than the value indicated on the model eye, contact NIDEK or your authorized distributor.

NOTE! Always store the model eye with its cap on. If the lens surface is soiled or flawed, measurement accuracy cannot be properly checked.